/Engine/Source/Runtime/MovieScene/Public/EntitySystem/MovieSceneEntityLedger.h
Unlink all imported one-shot linker entities and their children and clear the list of one shots
A mask representing the changes made to the environment
void UnlinkOneShots ( [UMovieSceneEntitySystemLinker](API\Runtime\MovieScene\EntitySystem\UMovieSceneEntitySystemLinker) * Linker )